contestada

Choose the list below that properly arranges the order of spectra classes (from hottest to coldest)

Select one:

a. T,L,M,K,G,F,A,B,O

b. O,B,G,A,M,K,F,L,T

c. O,B,A,F,G,K,M,L,T

d. A,B,F,G,K,L,M,O,T